?
Solved

Unable to browse to remote.domain.com from the external network only.

Posted on 2012-03-18
4
Medium Priority
?
279 Views
Last Modified: 2012-06-27
We are presently running Windows SBS 2011.  We are port forwaring 443 from an external IP, which we are performing 1to1 NAT, to the server on an internal IP.  Up until today it has worked great.

Today, we installed all the windows critical updates and we installed AVG anti-virus.

We are able to, from the LAN, browse to https://remote.domain.com and get the web login screen.  When we login from the Internet, we are getting the error from IE, The page you are looking for could not be found.

We checked DNS, it is resolving correctly.
We checked the port forward, it is working fine on 443 and 3389 for RDP.  RDP is working great.
We have gone to the application events and we do not see denials.

Thoughts?

Thank you ahead of time for your feedback!
0
Comment
Question by:shaw71
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 

Author Comment

by:shaw71
ID: 37736008
Also, we disabled AVG, no change to external browsing to https://remote.domain.com
0
 
LVL 17

Expert Comment

by:WORKS2011
ID: 37736567
IS TCP 987 open on the firewall?
0
 

Accepted Solution

by:
shaw71 earned 0 total points
ID: 37737909
TCP 987 was opened with no affect.

I rebooted Windows SBS 2011 and the service was restored. Not sure what was happening as of yet, but it is working now.  Thank you for your input.
0
 

Author Closing Comment

by:shaw71
ID: 37760260
After confirming with the firewall that all ports hadn't changed, and adding the additional TCP port 987, I have determined that it wasn't the firewall.

I rebooted the server and service was restored for outside remote.domain.com access.  Not sure what happened at this point. Waiting for the situation to duplicate in order to see if it happens again to specifically diagnose.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In the event you manage a Small Business Server 2003, and you are audited for PCI compliance, there are several changes you must make in order to pass the audit. I can take no credit for discovering any of these fixes or workarounds, but there is no…
I work for a company that primarily works with small businesses as their outsourced IT vendor. As such the majority of these customers utilize some version of Small Business Server. Due to the economics of running a small business, many of these cus…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question